baber/WOPTO huggingface dataset:
Patent GB-639745-A (GB)
Title: Improvements in, or relating to frequency modulated radio altimeters
Inventor: PERRELLE EVAN THOMAS DE LA
IPC: G01S13/34
Filed: 1947-11-28
Abstract: 639,745. Radiolocation; mixing high-frequency oscillation. MINISTER OF SUPPLY. Nov. 28, 1947, No. 31540. [Classes 40 (v) and 40 (vii)] [Also in Group XL (b)] In a frequency-modulated radar altimeter the frequency-modulated output from the transmitter T is radiated towards a reflecting object by the aerial T.A. and a portion of transmitter output fT is heterodyned at a first detector D.I. with the output fI.F. from an intermediate frequency oscillator O.I.F. The resultant summation signal fT+fI.F. is heterodyned at a second detector D2 with the reflected signal fTŒfD received by the aerial R.A. to produce a difference I.F. signal fI.F.ŒfD differing in frequency from the I.F. oscillator by an amount fD depending on the range of the reflecting object, and after amplification at I.F.A. the I.F. signal is heterodyned at a third detector D3 with an output from O.I.F. to give a beat frequency fD proportional to range which is indicated by the frequency-counter C.C. and meter M after amplification at L.F.A. As shown in Fig. 2, the transmitter oscillator comprises a groundedgrid triode 21 with a coaxial line L tuned by capacitors C5 connected between cathode and grid, the anode tuned circuit comprising the tubular resonant cavity 1 and the lumped capacitances C2 and C7; C4 and C6 comprise R.F. byepass capacitors. The centre frequency of the transmitter sweep is set by capacitor C2 and the frequency modulation is produced by the motor-driven capacitor C7. The filter R.F.C., Fig. 1, comprises a high "Q" resonant cavity 3 connected to cavity 1 by a tubular member 2, the cavity 3 being similar to cavity 1 but of different inductance and the associated variable capacitor C8 being ganged to capacitor C7. The first detector D1 which is housed in the member 2 comprises a crystal 4 mounted in a line-coupling 5 which has end loops 6 and 7 projecting into the adjacent resonant cavities, the input from the I.F. oscillator O.F.I., Fig. 1, being coupled in by the line 8. The second detector D2 is housed in an extension tube 9 of the filter cavity 3 and comprises a balanced circuit using two crystals 10 and 11 in series connection across the end of the filter with the mid-point connected through a line loop coupling 12 to the receiver aerial R.A., so that the summation signal passed by the filter is fed in push-pull, and the input from the aerial R.A. in parallel, to the crystals, thereby balancing out any unwanted amplitude modulation of the filter output; the output from detector D2 is taken from terminals 13.
Patent GB-1432371-A (GB)
Title: Collation of articles
IPC: B65B35/16
Filed: 1972-07-12
Abstract: 1432371 Conveying and transferring articles; packaging apparatus ROSE FORGROVE Ltd 2 July 1973 [5 July 1972] 31561/72 Headings B8A and B8C [Also in Division F2] Articles such as flat bags are fed in succession to a receiving staion 54 through which pass successive pairs of grippers 19 mounted on a rotatable collating wheel 11, the members 21, 22 of each gripper 19 being pivotally mounted relative to the wheel 11 and also being in connection with cams 43, 44 and 46, 47 respectively such that as each pair of grippers 19 approaches the station 54 its members 21, 22 are urged apart and a predetermined number of articles are fed in succession by a pair of nip rollers 53 on to the leading member 21 of the pair in superposed relationship to form a collated batch, the batch so formed then being engaged by the other member 22 of the pair as the pair 19 moves out of the filling station 54 and the collated batch is then transferred by the wheel 11 to a receiving station 63 at which the grippers 19 discharge the batch carried thereby into cartons 66 located on a conveyer 64. The wheel 11 comprises a spider (16) terminating in a plurality of radially disposed bearing lugs (17), Fig. 2 (not shown), on each of which lugs is pivotally mounted a support (23) for a gripper member (21) of a pair, and pivotally mounted on each support (23) is a support (25) for the other gripper (22) of the pair, Fig. 3 (not shown), a pair of springs (28), 41 extending between the supports (23, 25) and a ring encircling the shaft of the wheel 11, the springs being operative to yieldably urge the gripper members of each pair towards each other. Mounted on each support (23) is a pair of cam-follower rollers (27, 31) which engage respectively with the cams 32, 44 and a further pair of cam-follower rollers (38, 39) is mounted on each support (25) to engage the cams 46, 47. Fig. 3 (not shown). The engagement of the rollers with their associated cams not only produces the urging apart of the gripper members of each pair 19 on their approach to and during their passage through the station 54 but the cam (43) which is associated with the gripper members 21 maintains that member of each pair at a substantially constant angle during its movement through the receiving station 54. In the embodiment described the collating wheel 11 is coupled directly to a known type of bag-forming and filling machine in which filled bags are delivered as a continuous connected chain to a rotatable cutting device 52 from which the individual severed bags 51 are seized by the pair of nip rollers 53 which rotate at a rate higher than that of the cutting device 52 so as to space the bags as they are delivered at the receiving station 54 where the leading member 21 of the pair of grippers 19 for the time being passing through the station 54 is positioned substantially horizontally below the nip rollers 53.
Patent GB-365564-A (GB)
Title: Treatment of animal fibres
IPC: C08L89/06
Filed: 1930-10-21
Abstract: Artificial leather is prepared from disintegrated scraps and cuttings of leather made into a pulp with water and treated with rubber latex, a vulcanizing agent, and if necessary an accelerator soluble or dispersible in water being added to the pulp before the latex; the liquid is extracted immediately after addition of the latex, and coagulation is effected and vulcanization is started at this stage. The process is further characterized in that the slurry is drawn off and the vulcanizing ingredients and binder added to it continuously as distinct from the batch method.  The treated fibre is collected on a sieve and dried at a temperature of from 30-80 DEG  C.  Tanning agents may be added to the original pulp, and if sumach is used no accelerator is needed.  In an example the amount of latex employed is from 10-20 per cent of the dry fibres.  Sodium chloride may be used as coagulant.
Patent GB-633807-A (GB)
Title: Improvements in and relating to the production of water-insoluble threads or like products of cyanoethyl ethers of cellulose
IPC: C08B16/00
Filed: 1947-12-01
Abstract: Water-insoluble filaments, films, or like products are obtained by first reacting on viscose at a temperature not greater than 40 DEG C. with 0.5-1.2 mols. of acrylonitrile per anhydroglucose unit present in the cellulose of the viscose, then ensuring, by cooling if necessary, that the reaction mixture is at a temperature not greater than 16 DEG  C., removing suspended matter, and extruding the solution into an acid coagulating bath, whilst the temperature of the mixture is maintained at not greater than 16 DEG  C.  The filaments obtained have a basis of a cyanoethyl ether of cellulose.  The suspended matter which is removed prior to extrusion is mainly bis (b -cyanoethyl) sulphide.  The process is applicable to the production of fibres, yarns, cords, monofils, ribbons, or films.  In an example, viscose having a salt index figure of 5.5 is cooled to 14 DEG  C. and then mixed with acrylonitrile.  The reaction mixture is cooled to 10 DEG  C. and filtered.  The solution is stored under low pressure and then extruded, in the manner usual for viscose, into a coagulating bath containing sulphuric acid, sodium sulphate, magnesium sulphate and zinc sulphate.  The cakes of thread obtained are reeled into skeins which are washed until free from acid, and then immersed in a warm aqueous bath containing lauryl pyridinium chloride.  They are then centrifuged and dried in air at 40 DEG  C.  The threads are soluble in 0.8 per cent caustic soda solution and can be used as removable yarns in the production of cut-out and like effects, obtained by printing, or as removable threads in the weaving of fabrics with twistless cotton threads.
Patent GB-209552-A (GB)
Title: Improvements in or relating to wind-driven electrical generators
IPC: F03D11/02
Filed: 1922-11-20
Abstract: 209,552. Telford, Grier, & Mackay, Ltd., and Henderson, W. Nov. 20, 1922. Dynamos, driving.-A dynamo C, which may be protected by a hood J and casing J<1>, is supported on a stationary part of a windmill tower A, and has its armature shaft C<1> vertical and directly connected by a flexible coupling H to the vertical driving shaft G. The hub D' of the sails rotates on a fixed spindle D<2> carried by the swivelling head E, and drives the shaft G through bevel gear M<1>, M. Bearings G<1>, G<2>, K<2> are provided, as shown.
Patent GB-392540-A (GB)
Title: Improvements in or relating to means for supporting flexible disc records on phonograph turntables
IPC: G11B3/60
Filed: 1931-11-16
Abstract: 392,540. Gramophones ; records. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.- (Assignees of Harrison, H. C. ; 94, Bayview Avenue, Port Washington, New York, U.S.A.) Nov. 16, 1931, No. 31707. Convention date, June 25. [Class 40 (ii).] Means for supporting a flexible record disc upon a gramophone turntable comprises a plurality of springs 111, Figs. 1 and 2, secured to the turntable 110 at points around its periphery and adapted to engage with their free ends in corresponding holes provided near the rim of the record disc so as to exert a radial tension on the disc. Each spring 111 is fitted into a member 113 which is held in a tube 114, extending through the turntable and secured by a set-screw 115. The upper end of each spring 111 has a conical cap 116 to engage the hole in the record disc. If desired, the holes in the disc may.be of approximately key-hole shape so that a rotary movement of the disc relatively to the turntable will be necessary after placing the disc on the turntable in order that the disc may be held in position. In an alternative form, record-engaging springs 11, Fig. 4, are mounted in a flanged part 10 of the turntable and,are caused to be moved radially inwards to engage the holes in the record by the co-operation of special surfaces 17 on a rotatable cam ring 14 with each spring 11. The cam ring 114 is supported by pins 18 extending through slotted openings 19 in the flange 10. The rotation of the ring 14, so that the springs 11 are disengaged from the surfaces 17, causes the springs to tension the disc.
Patent GB-485470-A (GB)
Title: Improvements in or relating to modulated carrier wave transmitters
IPC: H03C1/62
Filed: 1936-11-19
Abstract: 485,470. Wireless transmitting systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd.. CLOUGH, N. H., and GREEN, E. Nov. 19, 1936, No. 31723. [Class 40 (v)] The controlling voltage for a floating-carrier series-type modulator is obtained by rectification of the modulating potentials by an anodebend rectifier. The modulating valve V1, Fig. 4, is in series on the positive side of the carrier-wave amplifier R1. An input valve V<1>1 is provided, the anode of which is connected to positive potential through resistance R4, and to the grid of the modulating stage, the filament is connected to earth through a source of potential B3. Modulation input is applied at terminals T1, T2 to the grid of V<1>1. Modulation, in series with a source of bias B2, is also applied to the grid of the anode-bend rectifier V2 through a grid resistance R5 shunted by a condenser C3, from terminals T5, T6. The voltage across R2, C1, in series with a bias source B, is fed through a resistance R<1>5 to the grid of the input valve V<1>1. On the application of modulating potentials, the valve V2 conduits on positive half-cycles, discharging C1 and the resultant grid bias of V<1>1 rises with a consequent increase of carrier. The resistance R5 serves to bias back the valve V2 against overdriving. Fig. 5 (not shown) is a modification in which battery B2 is dispensed with, the bias being supplied from a tapping on source B. Fig. 6 (not shown) is a modification in which the anode of the rectifier is connected through a supply source to the resistance-condenser combination R2, C1. Fig. 7 (not shown) is a modification in which the batteries B, B2 are replaced by tappings on the same potential source. The circuits are also stated to be applicable to keying telegraph transmitters by audio-frequency signals, in which case the time constant of the resistance condenser combination R2, C1 is such that the operating and release times are equal.
Patent GB-895188-A (GB)
Title: A molded pulp container
IPC: B65D1/34
Filed: 1960-09-15
Abstract: 895,188. Moulded pulp containers. KEYES FIBRE CO. Sept. 15, 1960 [Sept. 18, 1959], No. 31763/60. Class 18. A moulded pulp container 10 comprises a bottom 22 which is substantially rectangular in shape and side walls 14, 16 extending in an upwardly and outwardly inclined direction from the base, the inner and outer surfaces of each side wall being substantially parallel up to a point 26 of predetermined height, the inner surface extending upwardly as a co-planar continuation from the point 26 and then turning outwardly at 30 and then downwardly to form a rim, and the outer surface turning outwardly at 36 from the point 26 to merge with the inner surface. The container is of a shallow type used for packaging and displaying meat and can be covered by adhering a transparent plastic film over the open end. To permit nesting of the containers without difficulty in separating them the surfaces of the walls at 30 and 36 are curved and of substantially equal radii. The container has a reinforcing bead 40.
Patent GB-320782-A (GB)
Title: Improvements in airship
IPC: B64B1/00
Filed: 1928-11-01
Abstract: 320,782. Lewis, J. N. Nov. 1, 1928. Airships; aerostats; coupled in pairs or trains.-An airship, Fig. 1, is composed of a number of units flexibly connected together to form a train. Each unit is provided with power units, control surfaces &c. so as to be capable of independent operation separate from the train. The framework of each unit is composed of two parallel vertical truss frames 4, Fig. 4, extending longitudinally the length of the unit and connected to spaced circumferential rings 1 by horizontal transverse struts 5. The circumferential rings are braced by radial tension members 2 and chord tension members 3. The outer container is cylindrical and is composed of thin sheet metal or fabric. The gas containers are placed in the semi-cylindrical spaces between the vertical truss frames and the shell. Lower cross-bars 6 at the rings 1 unite a nacelle 7 to the main trusses 4. The units are connected by the coupling devices shown in Fig. 9 which incorporate a lever operated release device. A number of these couplings are fitted at the ends of the main truss members 4 and end transverse struts 5. When the units are connected springs 12 are arranged to yield under heavy loads sufficiently to permit the units limited relative movement. All units except the front are provided with a collapsable and extensible nose for use when operating independently. The nose consists of a number of semi-circular members 23, 24, Fig. 8, pivoted in plates 25 attached to the top and bottom ends of the members 4. The two inner or central members are mounted on the same pivots so that they may swing to the vertical central plane of the unit. These semi-circular members carry a fabric covering which folds between them when swung back into the closed position. The front and intermediate units are provided with rudders which are normally stowed in the position shown in Fig. 14, and are swung out when required, as indicated by the dotted lines in Fig. 3. The control surfaces 54 and 55 are mounted on horizontal transverse shafts mounted in ball bearing journals secured to one of the transverse struts 5 and to a similar strut in the nacelle, respectively (see Fig. 4).
Patent GB-945187-A (GB)
Title: Improvements relating to commercial motor vehicle cabs
Inventor: BURZI RICHARD
IPC: B60N2/34
Filed: 1961-09-05
Abstract: 945,187. Vehicle seats. AUSTIN MOTOR CO. Ltd. Oct. 17, 1962 [Sept. 5, 1961], No. 31806/61. Heading B7J. [Also in Division A4] A commercial motor vehicle cab 1, Fig. 1, has seating accommodation, for at least three abreast, in the form of a divided bench seat having seat cushions 3, 4, 5 and seat backs 3A, 4A, 5A, the latter being hinged at their tops at 6 to the cab body whereby they may be swung upwardly to the position shown in Fig. 2 to form the upper berth of a two-tier bunk, which berth is retained in position by two sets of hoop-like supports 7, 7A and 8, 8A which are fabricated from light-alloy tubing. Each set comprises a pair of hoops one of which is inverted and the pair are pivoted together at 9. As shown in Fig. 2 the set 7, 7A support the raised seat backs from the seat tray 13, to which the hoop 7 is pivoted at 12. The hoop 8 pivoted to seat brake frame 16 at 17 engages spring clips 18 on the cab roof 11. The hoops 8A and 7A engage in lodgments 19 in the seat back 3A and seat cushion 5, respectively, to hold them slightly inclined to serve as head rests. The hoop sets are housed under the seat back 4A and cushion 4, when not in use.
Patent GB-1134588-A (GB)
Title: Electroluminescent device and dielectric medium therefor
Inventor: DYMON JOSEPH J
IPC: H05B33/20
Filed: 1967-07-11
Abstract: 1,134,588. Cyanoethyl cellulose composition. GENERAL TELEPHONE & ELECTRONICS LABORATORIES Inc. 11 July, 1967 [11 July, 1966], No. 31905/67. Heading C3F. [Also in Division C4] A dielectric medium for use with electroluminescent phosphors comprises a mixture of cyanoethylated cellulose (CEC) and poly- 2,2,2-trifluoroethyl vinyl ether (TFEVE). From 1 to 2 parts by volume (e.g. 2 parts) of CEC may be mixed with from 2 to 1 parts by volume (e.g. 1 part) of TFEVE in a solvent consisting of equal volumes (e.g. 40 parts each) of acetone, dimethylformamide and tetrahydrofuran. The degree of substitution of cyanoethyl radicals in an anhydroglucose unit of the cellulose polymer of the CEC is preferably in the range 2À3 to 2À8, preferably 2À4.
Patent GB-778405-A (GB)
Title: Improvements in or relating to electric pulse coincidence circuits
Inventor: JACKSON THOMAS MEIRION
IPC: H03K17/52
Filed: 1954-11-04
Abstract: 778,405. Cold-cathode tubes. STANDARD TELEPHONES & CABLES, Ltd. Nov. 4, 1954, No. 31906/54. Class 39(1). [Also in Group XL(c)] A gas-filled glow discharge tube for use in a pulse coincidence circuit comprises a diode assembly consisting of an anode 7 and a cathode 8, and a triode assembly consisting of an anode 9, a cathode 10 and a trigger electrode 11, each electrode being a nickel strip bent and rivetted to a mica sheet 3 which is secured to a mica disc 4 by eyelets 5 welded to wires 6. The discharge surface of the diode cathode 8 is spaced from the mica sheet 3 to avoid trouble due to cathode sputtering, and a wire probe 12 welded to the cathode surface extends through an aperture in the mica sheet 3 into the anode-cathode space of the triode. An auxiliary gap between a wire 13 and a wire mesh 14 is provided to eliminate the statistical delay of firing. Electrode and gap dimensions are given and the gas filling consists of 92 per cent neon, 7 per cent hydrogen and 1 per cent argon at 100 mm. pressure of mercury. The tube is connected in a circuit (see Group XL(c)) providing connections to the electrodes such that discharge in the triode occurs only on coincidence between a positive triode potential condition applied to the triode trigger electrode and a negative potential condition applied to the triode cathode, while discharge in the diode section is initiated only in the presence of residual ionization in the triode section after extinction of discharge between the anode and cathode of the triode, the arrangement providing an output signal from the diode only when coincidence has occurred between a said positive and a said negative potential condition and the latter has been removed.
Patent GB-737894-A (GB)
Title: Improvements in or relating to devices for peeling citrus fruits
IPC: A47J17/04
Filed: 1952-12-17
Abstract: 737,894. Orange &c. peelers. LEVITIN, J. Dec. 17, 1953 [Dec. 17, 1952; Feb. 25, 1953], Nos. 31941/52 and 5251/53. Divided out of 708,149. Class 28 (2). The peel of an orange is slit by a cutting edge 9 and is lifted upwards by a plate 10 projecting on one or both sides of the bottom of the blade 8, all being urged upwards by the resilience of a bent spring arm 5. The plate 10 prevents entry of the blade into the flesh of the orange and glides over the surface of the flesh and beneath the skin. The cutting peel lifting device 8, 9, 10 is attached by its spring arm 5 to a pair of spaced side bars 1 pivoted at 11 to a pair of handle arms 12. The side bars each terminate in arcuate runners 4 spaced apart to glide over the surface of the orange. The cutter &c. 8, 9, 10 is first forced down by the fingers between the spaced bars to enter the skin as the whole device is drawn around the orange by the handle to complete an orbital slit. These may be two spaced cutters &c. to make two spaced cuts in the skin whereby a strip of skin between the cutters is removed. Specification 708,149 is referred to.
Patent GB-902570-A (GB)
Title: Preparation of c-alkylated piperazines
IPC: C07D295/023
Filed: 1958-10-07
Abstract: In a process for preparing C-alkylated piperazines, a dialkanolamine of the formula:  Z.CHOH.CHR1.NH.CRR11.CHR111.OH, in which Z is C1-10 alkyl radical and R, R1, R11 and R111 are each a hydrogen atom or a C1-3 alkyl radical, is reacted at an elevated temperature and under a pressure within a range of 30 to 400 atmospheres with ammonia in the presence of hydrogen having a partial pressure of 10 to 200 atmospheres and a hydrogenation catalyst which comprises at least one metal or oxide of nickel, copper or cobalt.  The catalyst may optionally contain a minor amount of a promoter which is chromium oxide, molybdenum oxide, manganese oxide or thorium oxide or a mixture thereof.  Tetramethyl pyrazine is also formed as a byproduct in the preparation of 2,3,5,6-tetramethylpiperazine. 1-(2-Hydroxyethylamino)-2-dodecanol is prepared from dodecene oxide and monoethanolamine.
Patent GB-487672-A (GB)
Title: Improvements in or relating to the extraction of dust from air and gases by sprayingwith liquids
IPC: B01D47/10
Filed: 1936-11-21
Abstract: 487,672. Washing gases. NYBORG, T. G., and MINING ENGINEERING CO., Ltd. Nov. 21, 1936, Nos. 31948/36, 4375/37, and 19781/37. [Class 55 (ii)] In the removal of dust from air and other gases by washing, the air is drawn through a tangential inlet 4 and passes round an annular chamber 5, curls in over the rim of a spraying tube 1, and forms a vortex as it descends towards a depositing chamber 8. The spray from a nozzle 7, axially directed, is so controlled that the wetted dust forms a sludge on the wall of the tube, with its surface defining a vena contracta as indicated in dotted lines thereafter, the sludge breaks off and falls into the chamber 8. The gas stream passes up a tube 11, through an exhaust fan 15 into a part 19 of the casing 9, and escapes through an outlet 20. The apparatus is formed of metal and connected to earth so that the total electrostatic charge of the dust cloud is reduced by the particles impinging on the walls.